The 2013 Glastonbury Festival is underway, and we're seeing plenty of music-loving stars out and about at England's Worthy Farm. Carey Mulligan popped up at the festival yesterday, alongside regulars like Cara Delevingne, Sienna Miller, and Kate Moss. On Firiday, Sienna helicoptered into the festival with her good friend Poppy Delevingne, and the pals were later joined by Tom Sturridge and Chris O'Dowd and his wife Dawn Porter. Today, Sienna and Tom's Burberry ads were released which feature the couple embracing, much like how they were during their time at the festival. Other stars on the scene at Glastonbury included Prince Harry's girlfriend Cressida Bonas and Bradley Cooper's new lover, Suki Waterhouse. Meanwhile, Florence Welch also made the rounds, as did Rita Ora and Solange Knowles, who have both already hit the stage to perform.